CVE-2026-44375

תיאור (מקור, אנגלית)

Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized timestamp extension length, causing the reader to allocate an attacker-controlled number of bytes on the stack. This can trigger a StackOverflowException, which is not catchable by user code and terminates the process. This vulnerability is fixed in 1.1.62.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-4/8/2026

CWE

CWE-789

קישורים

• https://github.com/AArnott/Nerdbank.MessagePack/commit/7d1eb319cfabe7280e70699‮…
• https://github.com/AArnott/Nerdbank.MessagePack/pull/941
• https://github.com/AArnott/Nerdbank.MessagePack/releases/tag/v1.1.62
• https://github.com/AArnott/Nerdbank.MessagePack/security/advisories/GHSA-2cwq-‮…